yta thats not accepting nor being proud thats called being ashamed of who your partner is shes bi and you cant change that if your mother doesnt like her and you are as proud as you say you would have held her hand and let her say it and supported her for it i told her im proud of her and who she is but that this could weaken my realtionship with my mother and that she should expect my boundaries and discomfort in sharing that information